Finding the Fourth Proportional to 3,887,688,240.15, 5,365,006,304.84 and 2,194,499,280.75
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Solution
The fourth proportional to 3,887,688,240.15, 5,365,006,304.84 and 2,194,499,280.75 is: 3,028,407,050.65
Step by Step Solution
- Step 1: Write the proportion equation
3,887,688,240.15 : 5,365,006,304.84 = 2,194,499,280.75 : x - Step 2: Convert to fraction form
3,887,688,240.15/5,365,006,304.84 = 2,194,499,280.75/x - Step 3: Cross multiply
3,887,688,240.15x = 5,365,006,304.84 × 2,194,499,280.75 - Step 4: Simplify right side
3,887,688,240.15x = 11,773,502,477,190,594,560 - Step 5: Solve for x
x = 11,773,502,477,190,594,560/3,887,688,240.15 - Step 6: Final answer
x = 3,028,407,050.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.